Roof Nav Class 1

Fm class 1 requires that a roof deck assembly is subjected to a series of tests internal fire external fire wind uplift resistance foot traffic corrosion resistance impact resistance and susceptibility to heat damage as described in fm 4470 approval standard for class 1 roof covers.

Roof nav class 1.

Successful steel deck roofing assemblies are rated class 1 which indicates that if the roof was constructed as tested and approved by fm approvals it is an acceptable insurance risk from an internal fire viewpoint. Building owners and some specifiers and designers don t realize that the ratings apply to uplift pressures in pounds per square foot psf not wind speeds. Roof navigator roofnav from fm approvals is the definitive source of up to date information on fm approved roofing assemblies and products. Class 1 the class 1 label is an exclusive designation that can only be awarded by fm global.

Fm approved class 1 fire rated interior walls and ceiling panels are utilized because of the lowered hazard from self propagating fire spread and potential fire damage within the facility. Whether you are an architect. Designed to help roofing professionals roofnav provides easy access to the most up to date fm approved roofing related information and related installation recommendations from relevant fm global property. Use asterisk at the end of a search term to search variations example.

Use parentheses for multiple cases example. Approval guide roofnav approval standards customer portal. Designed for roofing professionals roofnav will help you increase productivity provide higher customer satisfaction and generate more repeat business. According to the scope of fm 4470.

Use quotes to search for an exact phrase example. Explosion and suppression wildcard. Our goal is to assist you in identifying and configuring fm approved roofing assemblies by making all the information you need for your roofing needs readily accessible. One common misconception is the belief that fm approvals windstorm classification ratings such as 1 60 1 90 or 1 120 correlate to wind speeds of 60 90 or 120 miles per hour mph.

This test is significant as it indicates the successful testing of the entire roof assembly using fm approval standard 4470. Roofnav is a free web based tool developed by fm approvals that provides fast access to the most up to date fm approved roofing products and assemblies.